Here is the full log file.
I replaced the host with myhost, the limited user with myuser and the sudo user with rootuser.

martin

Re: How to sudo through a startup message

2014-03-24

As I've asked you already on stackoverflow, please attach a full log file showing the problem (using the latest version of WinSCP).

To generate log file, enable logging, log in to your server and do the operation and only the operation that causes the error. Submit the log with your post as an attachment. Note that passwords and passphrases not stored in the log. You may want to remove other data you consider sensitive though, such as host names, IP addresses, account names or file names (unless they are relevant to the problem). If you do not want to post the log publicly, you may email it to me. You will find my address (if you log in) in my forum profile. Please include link back to this topic in your email. Also note in this topic that you have emailed the log.

bobbel

How to sudo through a startup message

2014-03-24 16:22

Hello,

I'm connecting with my limited user to a server and do a sudo su - rootuser after that.

This works fine, until the logon has a startup message. Then I get this error on the sudo command: